Antitheft device for automobiles



A. TINO AND A. H. ROTH. ANTITHEFT mv ce ron AUTOMOBILES-q:

APPLICATION FILED AUG. 13, 1921.

Patented Nov. 14, 1922..

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INVENTORS anionic l'dno 4 m wz Jr. Roph.

A TTORNEY A. TINO AND A. H. ROTH.

ANTITHEFT DEVICE FOR AUTOMOBILES. APPLICATION FELED AUG. 13. I921.

1 ,435,431. Patented Nov. 14, 1922,

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v [v -55 Ellis I I INVENTORS I anzonw and A TTOR/VEY 1 Patented Nov. 14, 1922.

anronro 'rrno AnnaUeUsr H. ROTH, or 'nEwYonK, n. Y

AN'IITHEFT DEVICE FOR AUTOMOBILES.

Application filed August13, 1921, Serial No; 491,978.

T 0 all whom it may concernifi I Be it known that we, ANTONIO TINO and AUGUsr H. Born, citizens of Italy and Jugo- Slovakia, respectively, residing at New York, in the county of New York-and State of New York, have invented certain new and useful Improvements in Antitheft Devices for Automobiles, of which the following is a specification; I The invention relates to automobile locks and has particular reference to a typev of lock which can be readily attached to the dash-board of any of the present day automobiles and which can be easily operated by means ofa key.

Another object is the provision of a mechanism associated with the lock and operated by the locking plunger which will simultaneously shut olf the fuel supply.

Still another object is the provision of a lock having an auxiliary locking means which is both electrically and independently operable, so that lockingmeans will be found effective against" a :person who has the key, but is jnot familiar with the device. q p

I Still another object is the provision of a device which will lock the crank .shaft ofan automobile engine, thereby rendering the machine inoperable.

These and other objects will become apparent in-the description to follow in which characters of reference refer to the likenamed parts in the drawings. 1

Referringbriefiy to the drawings, Fig. 1 represents a schematic longitudinal section of the body of an automobile, and shows the device attached to the dash-board and the load equalizer wheel in the locked position. Figure 2 is a frontelevational view of the device as it is'mounted on the dash board and shows the load equalizer wheel free to be rotated and the fuel supply valve Open. I

Figure 3 is 'an identical view but shows the load equalizer wheellocked and the fuel supply valve closed.

, Figure 4 is a perspective view of one of the key actuated locking bolts.

Figure 5 is a frontelevational view of the device, with the cover plate removed. Figure 6 is a section taken on the line 6-6 of Figure 5 andshows the relative positions of the key to the locking bar.

Figure 7 is a view similar to Figure 5 and.

shows the plunger released and the locking bars withdrawn. 1 I

Figure 8 is a section on the line 88 of Figure 5 and shows the various members in operation.

Referring more in detail to the drawings the numeral 10 represents an automobile engine mounted on the usual type of chassis 11. Securely keyed tothe crank shaft 12 at the rear end thereof is the load equalizer wheel 13. Said member 13 has a slightly raisedsurface on the periphery thereof to form gear 14. I v 7 I Secured to therdash board 15in a suitable ,manner is a rectangular casing 16 having bosses formedin the interior thereof and the latter being provided with holes adapted to. threadably engage screws 17 shouldering' in the cover plate18 and to holding the latter inplace on the-casing 16.

A vertically disposeddownwardly extending locking lever 19 passes thrujslotsin casing 16 wherein it is, adapted'to engage the locking mechanism which will be more fully hereinafter described. The lower end I of said lever 19 has a semi-circular extension 20 having gear teeth 21 formed thereon. adapted to have the locking lever slide therein, a bearing bracket 22'is provided thereby giving rigidity of movement to the locking lever in its various operable positions. A stop 19. in the form of an extension of member 19 is provided to limit the upward movement of the 1atter.- The upper end of the locking lever is out away form ing a seat for the plate 23 secured thereon by the screw 23. I An expansion spring 24 mounted between the wall of casing 16 and the seat plate 23'normally tends to urge the locking lever 19 downwardly into the locked position.

When the car is in use and the lock is idle the lockinglever is in the position shown Securedv to the dash-board and 25 engaging the underside of stop 19.

When the automobile is parked orallowed to-stand and the-lock is to be used the pawl 25 is released from engagement withstop 19 by depressing the free end thereof; The

spring which is compressed at this instant will force the locking lever 19 downwardly until the teeth 21 mesh with the correspond ing teeth of the gear 14. thereby locking the engine crankshaft. A standard form shut-01f valve 32 is located on the dashboard and is directly connected with the fuel supply line. The valve center stem has an arm. 31 extending therefrom which has a pin 30 fixed to theend thereof. It is apparent from Figures 2 and 3 that when the locking lever 19 is moved downwardly to lock the gear 14-, a pin 29 fixed to the said lever and engaging theslot 28 of the crank arm 26 will cause the latter to rotate thru an are. As the said crank arm 26 is fulcrumed between ears 25, one end will be moved upward upon rotation thereof in a counter-clockwise direction while the opposite end'thereof will'move downward and, as the pin 30 is engaged in'slot .18 and secured to arm 31 of the val-vecenter stem, the latter is rotated thereby shutting off the fuel supply. simultaneously with the locking of the gear 14. v

In order to secure the leverlS) in the locked position the plunger bars 33 are provided and are adapted to be slidably secured in suitable recesses of the casing 16 and yieldably retained in contact slide surface of said recesses by the flat springs 37 which are secured to the cover plate 18. The extensions 3d of the plunger bars 33 are slid into recesses 35 located at the upper end of the bar 19 by means of the key 36 shown broken lines in Figure 8, the blades of said key ens;agingthe surface of the some what curved openings 33" In Figure 6 the members 33 are shown in the locked position. In disengaging said members from the bar 19 the key is turned in the direction indicated by the arrow, the said blades will en- ,e'ap'e the flat surface of the opening 33 and the extensions 34 of members 33, will be withdrawn from the recesses of members 19 after which the locking lever can readily he slid upwardly.

A pivoting pin 37* is fixedly secured to the wall 38 of casing 16 and extends partly thru the lock, said pin being; adapted to receive the inserted end. of the key stem and to provide a swivel guide member therefor.

An auxiliary locking" means is provided which can be operated independently or in combination with the above described lock and'consists of an electromagnet 38 energized by a battery unit 39 and a switch 40 connected in series circuit therewith. A. plunger ll, of magnetic metal and sliding in a hole in the core of the magnet and is adapted to normally engage a recess in the locking bar 19 by the urging of the eXpan sion spring 12. It is obviousfrom' the figure 2 that when the switch 40 is opened the spring will urge the plunger into the recess of locking lever 19 thereby securing; the lever into the locked position. Likewise to release the latter the switch 10 is closed, the magnet 38 is energized, the spring is compressed by the plunger 41 and drawn in the direction indicated by the arrow and thereby withdrawing the plunger from the recess in the lOCking bar 19.

We claim:

1. In combination with the load equal izer of an automobile engine, a gear wheel formed integrally therewith, a lever having teeth to engage said gear wheel, recesses at the upper end thereof, a casing adapted to slidably receive said locking lever, plunger bars slidably secured in said casing, and adapted to engage recesses of the said looking bars and secure the same in the locked position, a crank arm fulcrumedfbetween extensions on the said casing having slots at the opposite ends thereof, pin members.

slidably engaging said slots, one of said pins adapted to arcuately rotate the said crank arm,the other of said pins adapted to arcuately rotate an arm integral with a valve center stem and an auxiliary looking means for securing the locking lever in the locked position.

2. In combination with the load wheel of an automobile engine, a dear wheel formed integrally therewith, a lever having teeth at the lower end thereof adapted to engage said gear wheel, a casing adapted to slidably receive said locking bars, plunger bars in the saidcasing, a'key member adapted to actuate the said plunlqer bars, an electromagnet secured in said casing, a plunger adapted to slide in the core of the magnet, spring; normally urging the said plunger into engagement with a recess in the locking lever, and means for withdrawing the plun from the said recess 3. In combination with the load equalizer wheel of an automobile engine, a gear wheel formed integrally therewith, a lever having teeth at the lower end thereof adapted to engage said gear wheel, a casing adapted to receive the said locking lever, plunger bar's adapted to engage recesses of the locking levers and secure the latter in the locked position, a key adapted to actuate the plunger bars, a crank arm fulcrumed" between extensions of the casing, a pin fixed to the locking; arm and engaging a slot in one end of the crank arm adapted toarc'w ately rotate the latter, a pin secured to an arm integral with a valve center stem, said pin adapted to engage a similar slot at the opposite end of the crank arm and arcuately rotate the said valve stem, and means for opening or closing/the fuel supply valve.

4. In combination with the load equalizer of an automobile engine, a gear wheel formed integrally therewith, a lever having teeth a-t the lower end thereof adapted to engage secure the latter in the unlocked position said gear wheel, adapted to receive one end and means for releasing said pawl from of said locking lever, plunger bars engaging engagement with the locking lever. 10. recesses of said locking lever, a key Inem- In Witness whereof We afiix our signatures. ber actuatlng sald plunger bars, a releaslng pawl adapted to engage the underside of a ANTONIO TINO. lug extension of the said locking lever and AUGUST H. ROTH. 

